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Clippard Cordis
Clippard’s Cordis pressure control consists of a microcontroller, integrated pressure sensor, and two proportional valves.

Electronic Proportional Pressure Control

High resolution and high repeatability are top priorities for closed-loop pressure-control systems, and achieving closed-loop pressure control with high resolution or high repeatability isn’t a real tall order. However, getting both from the same system poses the real challenge.

Combining its new microcontrollers with its existing EVP and DVP lines of proportional valves, Clippard’s Cordis pressure control provides steady, repeatable downstream pressure as demand changes. The result is a precise, closed-loop linear pressure control with high resolution (≤5 mV) and repeatability.

The Cordis makes everything from calibration to sensor variety acceptance to future development opportunities accessible and simple. Primary benefits include:

Smooth linear control

Integrated internal or external sensor feedback

Multiple flow configurations

Static or dynamic applications with the same proportional control

Proportional fill and bleed control

Customizable pressure ranges and mounting options

The Cordis consists of a microcontroller, integrated pressure sensor, and two Clippard proportional valves. The inlet valve is connected to the moderately regulated supply pressure and the exhaust valve is connected to a port that vents excess pressure to the atmosphere. Once a command is increased, the inlet valve opens up to allow supply pressure to pass over the sensor element which provides an active feedback for this microcontroller to satisfy the set point in the process. If at any point the sensor detects a value higher than the set point, the exhaust valve will modulate open to vent off the excess pressure to maintain a stable and accurate control pressure in the process.

The Cordis is adaptable to a variety of sensors that can close the control loop around pressure, vacuum, or flow.

For more information, call Clippard Instrument Laboratory Inc. at (513) 521-4261, or visit www.clippard.com/link/hp2633715.

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